释义 |
氮气 dàn qì ★☆☆☆☆n.名词⁰·⁰⁰¹²ᴾᵃ⁸⁸⁶³ 基本例句 nitrogen繁体氮氣空气一种无色、无嗅、无味的气体混合物,主要由氮气约占78%和氧气约占21%组成,还有少量的氩、二氧化碳、氢、氖、氦及其它气体A colorless, odorless, tasteless, gaseous mixture, mainlynitrogenand oxygen with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases. 空气主要由氮气组成。Air consists chiefly ofnitrogen. 地球上空气的大部分成分是氮气。Nitrogen forms most of the Earth's air. |